Jay Ajayi back at practice

When Jay Ajayi was declared out of Dolphins practice early this week, alarm bells went off because of his history with a serious knee injury.

Turned out this injury had nothing to do with his previous problems — it was just a bruise — and Ajayi returned to participate in his first full-padded practice Friday morning.

“I just didn’t want to lose the momentum that I’ve been gaining,” Ajayi said. “I’ve been practicing well all through the off-season leading up to this point, to coming out of practice, so once I came back, I wanted to get back into it and get the ball rolling again.”

Fantasy Impact:

It's vital, although risky, for Ajayi to come back even at less than 100-percent. Arian Foster has made strides in his short time since signing and, in the eyes of many, established an edge in the competition. And that’s important because coaches have said they won’t use situational substitutions, instead relying on one running back to carry the load for each particular series. When subs are made, it’ll be from one series to the next, as the story said and as we had in a news item on Thursday.